California is currently home to 5602 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Los Angeles, San Francisco, San Diego and Sacramento. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
Study With Phage for CF Subjects With Pseudomonas Lung Infection
Recruiting
The goal of this Phase 2b clinical trial is to see if nebulized phage (BX004) can treat chronic Pseudomonas aeruginosa (PsA) lung infection in CF subjects. The primary goal is to see if 8 weeks of twice daily BX004 can reduce the amount of PsA in the sputum compared to placebo (on top of background CF therapy).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Stanford University, Palo Alto, California
Conditions: Chronic Pseudomonas Aeruginosa Infection, Cystic Fibrosis (CF)
Comparison of New SUREcore Biopsy of Needle to Standard of Care During Transperineal Prostate Biopsies
Recruiting
To study a novel biopsy needle system for performing transperineal prostate biopsy. Prostate biopsy remains the standard approach for prostate cancer detection. While pre-biopsy MRI allows for targeting of visible lesions, systemic or 'off target' samples are recommended due to the well-recognized risk of undegrading and under sampling with current commercially available needles. The SureCore plus single-use biopsy needle produces a more intact tissue core with a same caliber 18g needle with \~2... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: UC Davis Departments of Urologic Oncology, Sacramento, California
Conditions: Prostate Cancer
A Study to Evaluate the Efficacy and Safety of CIN-102 (Deudomperidone) in Adult Subjects With Idiopathic Gastroparesis.
Recruiting
The goal of this clinical trial is to evaluate if the study drug CIN-102 (deudomperidone) can help to decrease nausea severity associated with idiopathic gastroparesis severity in adult subjects. The main questions it aims to answer are: * To evaluate the efficacy of CIN-102 on symptoms of gastroparesis when given to patients with idiopathic gastroparesis compared to a placebo * To evaluate the safety of CIN-102 when given to patients with idiopathic gastroparesis compared to a placebo Partic... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Hope Clinical Research LLC, Canoga Park, California
Conditions: Idiopathic Gastroparesis
A Study to Evaluate INCB177054 in Participants With Select Advanced or Metastatic Solid Tumors
Recruiting
This study will be conducted to evaluate INCB177054 given as monotherapy or in combination with retifanlimab in participants with select advanced or metastatic solid Tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: The Angeles Clinic and Research Institute, Los Angeles, California
Conditions: Solid Tumors, Advanced Solid Tumors, Metastatic Solid Tumors
Fertilo In Vitro Research Study and Trial
Recruiting
The goal of this clinical trial is to evaluate the safety and efficacy of using Fertilo for In vitro maturation (IVM) in participants 18-35 years of age. The main question it aims to answer is whether the use of Fertilo is superior to using Medicult IVM for In vitro maturation. Researchers will compare the number of ongoing pregnancies at 12 weeks gestation for participants in each arm. * Arm 1 participants will have all cumulus oocyte complexes (COCs), or eggs surrounded by helper cells, cult... Read More
Gender:
FEMALE
Ages:
Between 18 years and 35 years
Trial Updated:
07/16/2025
Locations: Reproductive Fertility Center, Corona, California
Conditions: In Vitro Maturation of Oocytes
Study to Evaluate Efficacy and Safety of Ropanicant in MDD Patients
Recruiting
The primary objective is to evaluate the efficacy of Ropanicant at two different dosage levels compared to placebo in patients with Major Depressive Disorder (MDD).
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/16/2025
Locations: Advanced Research Center, Inc., Anaheim, California
Conditions: Major Depressive Disorder (MDD)
Papaverine in Combination With Radiation Therapy for the Treatment of Locally Advanced Rectal Cancer, DINOMITE Trial
Recruiting
This phase I trial studies the side effects and best dose of papaverine (PPV) when given together with radiation therapy (RT) and tests how well it works in treating patients with rectal cancer that has spread to nearby tissue or lymph nodes (locally advanced). PPV is an enzyme inhibitor, and it may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. RT uses high energy x-rays, particles, or radioactive seeds to kill tumor cells and shrink tumors. Giving PPV wi... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Locally Advanced Rectal Adenocarcinoma, Stage II Rectal Cancer AJCC v8, Stage III Rectal Cancer AJCC v8
GLYLO Supplement Pilot Trial on Glycation and Aging in Postmenopausal Women
Recruiting
The aim of this study is to assess the effectiveness of GLYLO, a dietary supplement, in postmenopausal women aged 45 to 65 who are overweight or obese and have elevated HbA1c levels. Specifically, the study seeks to evaluate whether GLYLO can reduce advanced glycation end products (AGEs) levels, which are harmful compounds formed when sugar attaches to proteins or fats in the body and can contribute to aging and disease. The primary outcome of the study is to determine if GLYLO reduces AGEs, enh... Read More
Gender:
FEMALE
Ages:
Between 45 years and 65 years
Trial Updated:
07/16/2025
Locations: The Buck Institute for Research on Aging, Novato, California
Conditions: Postmenopause, Metabolism, Geroscience
A Study to Evaluate the Effectiveness of Long-acting (LA) Cabotegravir (CAB) + Rilpivirine (RPV) LA When Given to Participants With Detectable HIV-1
Recruiting
This study will assess how effective, safe, and long-lasting a long-acting antiretroviral therapy (ART) using CAB LA + RPV LA is for people with HIV who still have detectable virus levels despite being on oral ART. The study will also consider feedback from patients on their experience with this treatment.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/16/2025
Locations: GSK Investigational Site, Beverly Hills, California
Conditions: HIV Infections
Suvorexant for Treatment of AUD and PTSD
Recruiting
This study is to determine if suvorexant (SUV) will reduce insomnia in 76 men and women veteran and non-veterans between the ages 21-65 with posttraumatic stress disorder (PTSD) symptoms and alcohol use disorder (AUD). All participants will have a 7-day placebo run-in period, followed by a random assignment to receive placebo or suvorexant for an additonal 14 days. Post-randomization, participants will attempt to stop drinking for two weeks and will complete daily virtual diaries and study outco... Read More
Gender:
ALL
Ages:
Between 21 years and 65 years
Trial Updated:
07/16/2025
Locations: University of California - Los Angeles, Los Angeles, California
Conditions: Alcohol Use Disorder (AUD), Post Traumatic Stress Disorder (PTSD), Insomnia
[18F]-rhPSMA PET-CT Imaging Performance in Patients With Prostate Cancer
Recruiting
This clinical trial evaluates \[18F\]-rh PSMA positron emission tomography (PET)-computed tomography (CT) imaging performance in patients with prostate cancer. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case of this research, 18F-rhPSMA. Because some cancers take up \[18F\]-rhPSMA, cancer cells can be seen with PET. CT utilizes x-rays that traverse body from the outside. CT images provide an exact outlin... Read More
Gender:
MALE
Ages:
21 years and above
Trial Updated:
07/16/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Prostate Carcinoma
CROSSOVER STUDY OF ON-DEMAND PREP FORMULATIONS COMPARING RECTAL AND ORAL TENOFOVIR
Recruiting
This is a Phase 2, multi-site, two-period, open label randomized crossover (Period 1 and 2) study. Participants are randomized 1:1 to one of two 8-week on-demand product sequences - TFV douche then oral F/TDF or oral F/TDF then TFV douche - with a 2 to 4-week washout period in between. Domains of safety, acceptability, adherence, and PK/PD (sub-study only) are assessed for each product.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: UCLA CARE Center CRS, Los Angeles, California
Conditions: Tenofovir